Shark

Explore the characteristics of the ocean's greatest predators, including the Ragged Tooth shark, with a design so successful that it hasn't changed in 400 million years. Also, discover the Blacktip shark, master teamwork hunters.

Hunting plays just a small part in the life of a shark and new discoveries are revealing their intricate social networks and complex courtship rituals. Also, the surprising ways they bring up their young are explored.